Gmail Captcha hacked!!!

In one of my previous posts I wrote “Is Captcha Secure“. Now spammers have proved that its no way secure by hacking Windows Live Captcha used by Hotmail and now Google’s Gmail Captcha system.

Now the spammers/bots can automatically signup in Gmail and create random bogus accounts. Websense believes that from the spammers’ perspective, there are four main advantages to this approach.

  • First, signing up for an account with Google allows access to its wide portfolio of services.
  • Second, Google’s domains are unlikely to be blacklisted.
  • Third, they are free to sign up.
  • And fourth, it may be hard to keep track of them as millions of users worldwide are using various Google services on a regular basis.

Check out this link for more details on the tactics used by spammers to hack the Gmail Captcha system.

If u maintain a website do not use captcha to ward off spammers. You can follow either of the two approaches.

1. Instead of asking the user to type something, follow a image based approach. i.e., asking the user to click on the image in a given list. This approach is being used in Passpack while registration.

2. To tackle spam attacks on the comment form, the drop comment can be a solution.

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2 thoughts on “Gmail Captcha hacked!!!

  1. Hi. Nice post.
    keep rocking.

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